/*
    * Copyright 2007-2008 The Kuali Foundation
    * 
    * Licensed under the Educational Community License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    * 
    * http://www.opensource.org/licenses/ecl2.php
    * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.kuali.ole.module.purap.dataaccess.impl;
  
  import org.kuali.ole.module.purap.dataaccess.B2BDao;
  import org.kuali.ole.module.purap.exception.B2BConnectionException;
  import org.kuali.rice.core.framework.persistence.ojb.dao.PlatformAwareDaoBaseOjb;
  
  import java.io.*;
  import java.net.HttpURLConnection;
  import java.net.MalformedURLException;
  import java.net.ProtocolException;
  import java.net.URL;
  
  public class B2BDaoImpl extends PlatformAwareDaoBaseOjb implements B2BDao {
      private static org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(B2BDaoImpl.class);
  
      /**
       * Take the request XML, post it to SciQuest, then get the response XML and return it.
       */
      public String sendPunchOutRequest(String request, String punchoutUrl) {
          LOG.debug("sendPunchOutRequest() started");
  
          try {
              URL url = new URL(punchoutUrl);
              HttpURLConnection conn = (HttpURLConnection) url.openConnection();
  
              conn.setDoInput(true);
              conn.setDoOutput(true);
              conn.setRequestMethod("POST");
              conn.setRequestProperty("Content-type", "text/xml");
  
              OutputStream out = conn.getOutputStream();
              OutputStreamWriter outw = new OutputStreamWriter(out, "UTF-8");
              outw.write(request);
              outw.flush();
              outw.close();
              out.flush();
              out.close();
  
              InputStream inp = conn.getInputStream();
  
              StringBuffer response = new StringBuffer();
              int i = inp.read();
              while (i >= 0) {
                  if (i >= 0) {
                      response.append((char) i);
                  }
                  i = inp.read();
              }
              return response.toString();
          } catch (MalformedURLException e) {
              LOG.error("postPunchOutSetupRequestMessage() Error posting setup", e);
              throw new B2BConnectionException("Unable to connect to remote site for punchout.", e);
          } catch (ProtocolException e) {
              LOG.error("postPunchOutSetupRequestMessage() Error posting setup", e);
              throw new B2BConnectionException("Unable to connect to remote site for punchout.", e);
          } catch (UnsupportedEncodingException e) {
              LOG.error("postPunchOutSetupRequestMessage() Error posting setup", e);
              throw new B2BConnectionException("Unable to connect to remote site for punchout.", e);
          } catch (IOException e) {
              LOG.error("postPunchOutSetupRequestMessage() Error posting setup", e);
              throw new B2BConnectionException("Unable to connect to remote site for punchout.", e);
          }
      }
  }